Results 21 to 30 of about 616 (169)

New findings of Prototherium ausetanum (Mammalia, Pan-Sirenia) from paving stones in Girona (Catalonia, Spain)? [PDF]

Fossil Record, 2023
Taxonomic and morphological approaches on Eocene sirenians from Catalonia (Spain) benefit from a newly discovered specimen found in a quite unusual locality, the pedestrian zone in the city of Girona. Two fossil-bearing limestone slabs from middle Eocene
Manja Voss, Oliver Hampe, Kristin Mahlow, Joan C. Vilanova   +3 more
doaj   +3 more sources

Ocorrência de infecção Cryptosporidium spp. em peixe-boi marinho (Trichechus manatus) Occurrence of Cryptosporidium spp. infection in antillean manatee (Trichechus manatus)

Revista Brasileira de Parasitologia Veterinária, 2009
A criptosporidiose constitui-se como uma zoonose que pode afetar o homem e uma ampla variedade de animais domésticos e silvestres, principalmente indivíduos imunodeficientes.
João Carlos Gomes Borges, Leucio Câmara Alves, Jociery Einhardt Vergara-Parente, Maria Aparecida da Glória Faustino, Erilane de Castro Lima Machado   +4 more
doaj   +1 more source

The Relevance of Ecological Transitions to Intelligence in Marine Mammals

Frontiers in Psychology, 2020
Macphail’s comparative approach to intelligence focused on associative processes, an orientation inconsistent with more multifaceted lay and scientific understandings of the term.
Gordon B. Bauer, Gordon B. Bauer, Peter F. Cook, Peter F. Cook, Heidi E. Harley, Heidi E. Harley, Heidi E. Harley   +6 more
doaj   +1 more source

3D genital shape complexity in female marine mammals

Ecology and Evolution, 2021
Comparisons of 3D shapes have recently been applied to diverse anatomical structures using landmarking techniques. However, discerning evolutionary patterns can be challenging for structures lacking homologous landmarks.
Dara N. Orbach, Charlotte A. Brassey, James D. Gardiner, Patricia L. R. Brennan   +3 more
doaj   +1 more source

Cranial remain from Tunisia provides new clues for the origin and evolution of Sirenia (Mammalia, Afrotheria) in Africa.

PLoS ONE, 2013
Sea cows (manatees, dugongs) are the only living marine mammals to feed solely on aquatic plants. Unlike whales or dolphins (Cetacea), the earliest evolutionary history of sirenians is poorly documented, and limited to a few fossils including skulls and ...
Julien Benoit, Sylvain Adnet, Essid El Mabrouk, Hayet Khayati, Mustapha Ben Haj Ali, Laurent Marivaux, Gilles Merzeraud, Samuel Merigeaud, Monique Vianey-Liaud, Rodolphe Tabuce   +9 more
doaj   +1 more source

Iterative evolution of sympatric seacow (Dugongidae, Sirenia) assemblages during the past ~26 million years. [PDF]

PLoS ONE, 2012
Extant sirenians show allopatric distributions throughout most of their range. However, their fossil record shows evidence of multispecies communities throughout most of the past ∼26 million years, in different oceanic basins.
Jorge Velez-Juarbe, Daryl P Domning, Nicholas D Pyenson   +2 more
doaj   +1 more source

FIRST RECORD OF DUGONGIDAE (MAMMALIA: SIRENIA) FROM THE FLORESTA CALCARENITES FORMATION (LATE BURDIGALIAN – EARLY LANGHIAN, REGGIO CALABRIA, SOUTHERN ITALY)

Rivista Italiana di Paleontologia e Stratigrafia, 2016
A sirenian rib has been recovered at Motta San Giovanni (Reggio Calabria) in the “Floresta Calcarenites”, a Formation cropping out in Sicily and Calabria and dated late Burdigalian-Langhian.
GIUSEPPE CARONE, ANTONELLA CINZIA MARRA, CATERINA MESIANO   +2 more
doaj   +1 more source

The Respiratory System of the Arctocephalus australis in Comparison to the Dog as a Land-Carnivore: Are There Adaptations to Marine Life?

Animals, 2023
Marine mammals are divided into three groups, with similar adaptations resulting from their aquatic lifestyle: sirenians, pinnipeds, and cetaceans. The present work focused on the South American fur seal, or Arctocephalus australis, a carnivore included ...
Ignacio Molpeceres-Diego, Rosario Martín-Orti, Juan-Pablo Loureiro, Carlos Tostado-Marcos, Enrique Tendillo-Domínguez, Inmaculada Santos-Álvarez, Pilar Pérez-Lloret, Juncal González-Soriano   +7 more
doaj   +1 more source

Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa

Zoologia (Curitiba), 2010
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T.
Rodrigo S. Amaral, Carolina M. Lucci, Fernando C. W. Rosas, Vera M. F. da Silva, Sônia N. Báo   +4 more
doaj   +1 more source

ON A SKULL OF A SIRENIAN FROM THE EARLY PLIOCENE OF SIENA, TUSCANY

Rivista Italiana di Paleontologia e Stratigrafia, 2020
A fine skull of a sirenian from Early Pliocene littoral sands with Late Ruscinian terrestrial mammals near Siena is referred to Metaxitherium gervaisi (Capellini, 1872); it provides detailed information on the characters of this species, which was ...
DANIELA CANOCCHI
doaj